CT动脉期扫描，肝实质内出现明显增强的病灶，CT诊断可能是（） A.肝癌 B.肝海绵

标准离差以绝对数衡量决策方案的风险，在期望值相同的情况下，标准离差越大，风险越大。（）

阅读理解。

     When you're feeling unhappy or forget how great you are, the following ways can make you feel good

about yourself.

     1. Look in the mirror and say to yourself, "I'm a special person (人) and there's no one in the world like

me. I can do anything!" It may not sound so good, but it really works!

     2. Do something nice for someone. Helping others always makes you feel good.

     3. Smile! Be friendly to people you meet. Try to find the good things in your life.

     4. Learn something new! Have you always wanted to decorate your own room or learn how to swim?

Go for it! New challenges (挑战) are fun and can give you a sense of success when you finish them.

     5. Stay with your family. We all need our family time. Talk with your parents or maybe even your cousin.

1. This passage gives ______ ways to make us feel good about ourselves. [ ]

A. three

B. four

C. five

D. six

2. We may have a sense of success when we ______. [ ]

A. look in the mirror

B. help others

C. can swim

D. finish new challenges

3. From the passage, we can know staying with our ______ is one way to feel happy. [ ]

A. parents

B. friends

C. family

D. classmates

4. This passage tells us how to ______. [ ]

A. be happy

B. remember something

C. learn something new

D. stay with our family

5. Which of the following is NOT mentioned (提到) ______ according to the passage.[ ]

A. We can smile to show friendliness to people we meet.

B. Failure is the mother of success.

C. It can make us feel happy to help others.

D. Being confident is also important.

根据《行政复议法》的规定，公民、法人或者其他组织对下列哪一事项不可以提起行政复议。( )

A．不服公安机关对民事纠纷做出的调解或者其他处理的

B．公安机关违法集资、征收财物、摊派费用或者违法要求履行其他义务的

C．认为符合法定条件，申请公安机关颁发许可证、执照、资质证、资格证等证书，或者申请公安机关审批、登记有关事项，公安机关没有依法办理的

D．申请公安机关履行保护人身权利、财产权利的法定职责，公安机关没有依法履行的

钡131的半衰期是（）。

A.11.5h

B.11.5d

C.11.5min

D.11.5a

成功的安全管理有三个方面的重要功能（）。

A.建立并完善企业的安全管理政策和组织结构，

包括制订主要的安全目标以及评价管理成效

B.计划、量洲、总结和评审安全工作，以满足法律要求并且最大限度地降低各种风险

C.制定安全技术标准

D.保证计划的有效实施并且报告安全业绩

E.促进企业内员工的交流